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Sinus cavities allow for voice resonance; They help filter and add moisture to any air that is inhaled through the nasal passages and in the removal of unwanted particles from the sinus cavities. Sinus cavities lighten the skull. Sinus cavities allow space to accommodate for growth; Sinus cavities may serve as shock absorption upon trauma
The nasal cavity is the uppermost part of the respiratory system and provides the nasal passage for inhaled air from the nostrils to the nasopharynx and rest of the respiratory tract. The paranasal sinuses surround and drain into the nasal cavity.
The borders of each nasal cavity are a roof, floor, medial wall (the septum), and lateral wall. [2] [3] The middle part of the roof of the nasal cavity is composed of the horizontal, perforated cribriform plate of the ethmoid bone, through which pass sensory fibres of the olfactory nerve into the cranial cavity. [2]
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Frontal sinus. Each frontal sinus is situated between the external and internal plates of the frontal bone. [1] [2] Their average measurements are as follows: height 28 mm, breadth 24 mm, depth 20 mm, creating a space of 6-7 ml. [3]
Your sinuses are hollow cavities in your face located around your eyes, nose and forehead. ... For many people, sinus pain is not necessarily the picture of migraine that they have in their mind's ...
The, paranasal sinuses are joined to the nasal cavity via small orifices called ostia. These become blocked easily by allergic inflammation, or by swelling in the nasal lining that occurs with a cold. If this happens, normal drainage of mucus within the sinuses is disrupted, and sinusitis may occur. Because the maxillary posterior teeth are ...
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